1 . Which security protocol or measure would provide the greatest protection for a wireless LAN? WPA2 cloaking SSIDs shared WEP key MAC address filtering 2 . Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message? only computer 4 computer 3 and RTR-A computer 4 and RTR-A computer 1, computer 2, computer 4, and RTR-A computer 1, computer 2, computer 3, computer 4, and RTR-A all of the computers and the router 3 . Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal? only hosts A and B only hosts A, B, and C only hosts A, B, C, and D only hosts A, B, C, and E 4 . Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.161...
That is probably a relict from register_global = On times. $_GET/$_POST variables were turned into standard variables ($_GET['foo'] became $foo). Variable names can't contain dots so they were internally converted.
ReplyDeleteThis has been there since the original commit to CVS, more than 10 years ago.
ReplyDeleteIt has a comment:
/* ensure that we don't have spaces or dots in the variable name (not binary safe) */
I have no idea why it isn't "binary safe"... You'd have to ask Zeev.
Its documented in php.net as:
ReplyDeleteDots and spaces in variable names are converted to underscores.